echocardiogram
The best procedure to visualize the heart valves and how they are functioning is a Cardiac Catheterization. Very simply, and under no anesthesia, an IV catheter is threaded into the heart so the heart and all it's structures and functions can be visualized and assessed. The patient is awake the whole time, and can see their own heart on the monitor!
This is a procedure that checks the status of the heart chambers and valves. Sound waves are used to produce images of the heart and check for any problem in heart muscles or valves. This exam is usually suggested if a doctor believes that the patients blood is being pumped abnormally.
DESCRIBE THE ACTION OF HEART VALVES. WHEN DO THEY OPEN AND CLOSE?
If you are not sure, and do not have the tool's, it would be best to take the head and valves to a shop to have it done. Believe me, if the valves are not ground to the specific degree, and angle, all your work will be for nothing, and the engine will not run.
The opening and closing of the heart valves.
This is a procedure done to restore the valves and valve seats. This is done typically when having a head(s) reconditioned.
5.7 later valve adjustment procedure begins with the removal of the valve cover. Each valve has an adjustment screw. The screws can be turned to adjust the valves.
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The valves and injectors, on a Caterpillar C 12 diesel engine, must be adjusted in time with each other. Use the adjustment screws on the injectors to set the timing.
because valves prevent this action
because valves prevent this action
TBI or carb the valves are set the same. It is a bit on the complacated side to explain. Any decent shop or repair manual has this process. The Chiltons manual #28642 "GENERAL MOTERS Full Size Trucks" or Haynes #24064 "Chevrolet & GMC Pick-ups" both have the compleat procedure.